“This sign isn’t just for business. This is made for you,” reads the “digital information boards” that Cambridge, Massachusetts-based start-up Soofa (soofa.co) has placed around Downtown Las Vegas on a six-month trial basis. While the solar-powered signs—located at stops for the free Downtown Loop shuttle—do show advertising, they also provide real-time bus arrival info, and allow any user to upload their own ads, neighborhood bulletins or original art. (Prices for posts range from $40 to $1000 monthly, though at press time it’s in free beta testing.) Hopefully, the City will choose to go all-in with Soofa—its solar-powered, phone-charging park benches look like another smart city must-have.